Where should travelers buy a SIM card in Nha Trang, and how much does it cost?

For travelers, the safest option is to buy a SIM card at an official carrier office in the city. That reduces the risk of being put on a different plan than the one advertised.

Avoid buying from street vendors: instead of a plan with 5 GB per day, you may end up with only 1 GB or even a SIM that is valid for just a day.

A typical tourist SIM in Nha Trang costs about 250,000–350,000 VND, depending on the plan and data allowance.

If you’re staying longer, Viettel may be worth checking: it was described as one of the cheaper operators, but one plan required paying for 3 months upfront. The total came to roughly 1,200 RUB equivalent, so it makes more sense for relocation or a long stay than for a short holiday.

Even if you don’t buy a local SIM immediately after arrival, it’s usually easy to stay connected in Nha Trang: free Wi‑Fi is available at the airport, in hotels, and in many cafés, including small local spots.